You had to know this sort of thing was coming: As you can see right after the break, Super Mario Bros.' World 1-1 has been replicated in the make-your-own-fun platformer, LittleBigPlanet. It's not exact (in fact, we wouldn't be surprised to see players trying to immediately trump it) but it's still adorable.
What's surprising, though, is that it appears to lose a bit in the fun department during translation. Of course, maybe this is more about the actual achievement. We should really stop looking a gift Sackboy in the mouth.